Theft alarm



- H. GARVEY. JR

April 22, 1930.

THEFT ALARM Filed Jan, 5, 1930 2 Sheets-Sheet 1 .w y f i W 4+ n 00/ o 9W1 F a m w r 1 J Z Z. -6 4 y i. k w 1 1 M {L I ZL w 0 W 9 3 W fl f 7 W 0Q flk A ttomey April 22, 1930. H. GARYEY. JR

THEFT ALARM Filed Jan. 3, 1950 2 Sheets-Sheerv 2 A itorney a m M w d 4 lfl v w a Z W M 6 6 is opened by an unauthorizedperson a report PatentedApr. 22, less.

PATENT o icE HENRY GARVEY, m jor snFnAnoIsvILLn, minors THEFT ALARMhpplicati onfiled January 3, 1930. ser arno; 418,299.. g

The present inventionrelates to a. theft alarm adapted .f-oruseironchicken coops and in other places and has for its prime object toprovide means whereby when a door or signal will besounded'.

*Anot-her very important object; of the invention resides in 1 theprovision of an apparatus of this nature-wherein the turning of the knobon a door willrelease a hammer for igniting a cartridge so as to soun'd'a report signalling an unauthorized opening or attempt to open thedoore: s

7 A still further very important object of the invention resides in theprovision of an apparatus of this nature? which-is exceedingly simple inits construction, inexpensive to manufacture and instalLstrong anddurable,

thoroughly eflicient and vreliable in use and operation, otherwise welladapted to the purpose forwhiohit is designed.

With the above and numerousother objects in view as will appear as thedescription proceeds, the invention resides in certain novel features ofconstruction, and in the combination and arrangement of parts: as willbe more fully" described andhereinafter claimed. I In the drawing; 4

Figure 1 lS'fiILlIlIlGI' elevation'of a door frame and door showing awall of abuilding in section with my improved apparatusmounted in place,1 V

Figure 2 is an outside elevation of the door, Figure'3 is'avertical'secti'onal view taken substantially on theline 33ofFigure 1,Figure 4 is a sectional viewtaken substantially'on the line4l l ofFigure 1, Figure 5 is a sectional view taken substantially on the line5-5 of Figure 2,

a Figure 6 is an end view of the tube,

Figure 7 is a sectional view taken substantially on the line 7--'7 ofFigure 3, and

Figure 8 is a sectional view taken substantially .on the line r 8-8 ofFigure 1. 4

Referring totlle drawings in detail it W 111 be seen that the numeral -5denotes aidoor frame, thenumeral 6 adoor and the numeral 7 a wall; Aknob 8 is mounted on the-inside of the latch mechanism 9 of the door; A'

barrel 10 is 11110111113861 vertically on the lower portion ofthe doorby suitable bracket 11 and the bottom end of thebarrel is threadas isclearly illustrated in'Figure 3.

A union 14 is threade'dly' engaged {with the upper end of the barrel. Atube 15 ,is threadedly engaged with the union and'extends upthr-ough abracket 16 on the inter mediate portion of the-door.

An elongated hammer bar 17 is slidable in the tube througha'guide'bracket 18, at the top of the door and when in its uppermostposition the top end .of this bar extends into a notch 19 formed in theupper part ofthe' frame 5. g V

A striker 20 is slidably mounted in the lower end of the tube and isadapted to be actuated bythe bar 17 as the same gravitates downwardly aswill be explained later.- The bar is provided with an opening21therethrough so that a pin maybe insertedthrough an opening 23in thedoor through this openingto hold the barin a raised position for thepurpose of unscrewing the tube 15 so that a cartridge 24may be insertedin the barrel.

The pin used for this purpose is disclosed at 26. Normally, however, thebar is held in'a'raised flposition by avpin 27 the-outer end of which isin the form of an eye for re'-.

oeiving hook 28 pivotally engaged on a threaded rod 29 threadedlyengaged in the fork 30 which is engaged on the knob by means of a cotterpin 31 or the-like sothat when the knob is oscillated from the inside oroutside the pin27'wi11 be withdrawn. thereby allowing the hammer bar 17togravitate downwardly,'impinge against the striker 20 which will shutoff the compression cap ofthe cartridge 2 firing the same which, of

, course, will tendto scare off the unauthorized person and will rendera loud report.

In order that an authorized person may open the door without causing thesignal to be given, a cable 40 is engaged with the hook 28 and trainedover pulleys 31 and through a tube 42 extending through an opening inthe wall 7 at some secret point. A ring 43 is preferably provided on theend of the cable so that this cable may be pulled to disengage the hook28 from the eye of the pin-27 therefore the door may be readily openedwithout firing the cartridge.

It is thought that the'construction, operation, utility and advantagesof this invention will now be quite apparent to those skilled in thisart without a more detailed description thereof. r i a The presentembodiment of the invention has been disclosed in considerable detailmerely for the purposes of exemplification since in actual practice itattains the features of advantage enumerated as desirable in thestatement of the invention and the above de scription. V f a Itwill beapparent that changes in the details of construction, and in thecombinationand arrangement of parts may be resorted to without departingfrom the spirit or scope of the invention as hereinafter claimed orsacrificingany of its advantages.

my: invention, what tridge in the upper end thereof, a union engagedwith the barrel, a tube detachably engagedwith the union, a hammer barslidable in the tube, a striker in the bottom of the tube adapted tobeimpinged against by the hammer for igniting the cartridge, and

means for holding the hammer raised, means for mounting the barrel andthe'tube on the inside of a door, and an elbowconnccted with the bottomof the barrel and extending through an opening in the door.

3. An apparatus of the class described comprising a barrel adapted toreceive a cartridge in the upper end thereof, a union engaged with'thebarrel, a tube detachably engaged with the union, a-hammer bar slidablein the tube, a striker in the bottom of the tube adapted to be impingedagainst by the hammer for igniting the cartridge, and

means for holding the hammer raised, means for mounting the barrel andthe tube onthe inside of a door, and an elbow connected with the bottomof the barrel and extending through an opening in the door, said meansfor holding the hammer comprising a pin extending through the tube, anda knob actuated means for pulling the pin out to release the hammer.

4. An apparatus of the class described comprising a barrel adapted toreceive a cartridge in the upper end thereof, a union engaged with thebarrel, a tube detachably engaged with the union, ahammer bar slidablein the tube, a'striker in the bottom of the tube adapted to be impingedagainst by the hammer for igniting the cartridge, and means for holdingthe hammer raised, means for mounting the barrel-and the tube on theinside of a door, and-an elbow connected with the bottom of the barreland extending through'a-n opening in the door, said means for holdingthe hammer comprising a pin extending through the tube, and a'knobactuated, means for pulling the pinout to release the hammer, said tubehaving an opening therein, said door having an opening therein, and apin adapted to be extended through said opening into an opening in thebarrel to hold the same in a raised'position' while the tube is beingdetached for reloading purposes. Y

5. An apparatus of the class described comprising a barrel adapted toreceive a cartridge in the upper end thereof, a union engaged with thebarrel,'a tube detachably engaged with thennion, a hammer bar slidablein the tube, a striker in the bottom of the tube adapted to be impingedagainst by the hammer for igniting the cartridge, and means for holdingthe hammer raised, means for mounting the barrel and-the tube on theinside of a door, and anelbow connected with the a bottom of the barreland extending through an opening in the door, said means for holding thehammer comprising a pin extending through the tube, and a knob actuatedmeans for pulling the pin out to release the hammer, said knob actuatingmeans comprising a pivoted hook operatively engaged with the knob andengageable with an eye formed on the pini 6. An apparatus of the classdescribed comprising a barrel adapted to receive acartridge in the upperend thereof,'a union engaged with the barrel, a tube detachably en gagedwith the union, a hammer bar slidable in the tube, a striker in thebottom of the tube adapted to be impinged against by the hammer forigniting the cartridge, and means for holding the hammer raised, meansfor mounting the barrel and the tube onthe inside of a door, and anelbow connected with the bottom of the barrel and extending through anopening in the door, said means for holding the hammer comprising a pinextending through the tube, and a knob actuated means for pulling thepin out to release the hammer, said knob aotuating'means comprising apivoted hook operatively engaged with the knob and engageable with aneye formed on the pin, a cable engaged with'the hook, pulleys over whichthe cable is trained,

and a tube through which the cable is trained,

said tube being adapted to terminate at a secret point so that the cablemay be pulled for disengaging the hook from the pin for authorizedopening of the door.

In testimony whereof I aflix my si ature.

HENRY GARVE ,JR. 7

